A:Answer Hi Marti1171,
Wall mounts come in many shapes and sizes. The various shapes and sizes are meant to try and meet the performance needs, space or wall requirements, desired styles and safety. If your TV came with a supplied mount, we recommend using it instead of having to purchase a new mount, For your safety and the protection of the product, we do recommend that the TV should be mount by a professional installer. Check these link for more information.
https://docs.sony.com/release//Ref_4731911121.pdf (page 3 to 5)
https://www.sony.com/electronics/support/articles/00124300
Regards,
-David
